fix(polyline): render fill mode boundaries

Use kernel-produced band outlines when FILLMODE is off. Preserve centerline linetype stations through inserts, clipping, projection, and PDF export.

src/modules/draw/inquiry/area.rs

@@ -364,6 +364,7 @@ impl CadCommand for AreaCommand {
         Some(WireModel {
             point_marker: None,
             taper_widths: Vec::new(),
+            pattern_stations: Vec::new(),
             world_width: 0.0,
             depth_override: None,
             display_visible: true,

src/modules/draw/inquiry/dist.rs

@@ -87,6 +87,7 @@ impl CadCommand for DistCommand {
         Some(WireModel {
             point_marker: None,
             taper_widths: Vec::new(),
+            pattern_stations: Vec::new(),
             world_width: 0.0,
             depth_override: None,
             display_visible: true,

src/modules/draw/inquiry/measuregeom.rs

@@ -72,6 +72,7 @@ impl MeasureGeomCommand {
         WireModel {
             point_marker: None,
             taper_widths: Vec::new(),
+            pattern_stations: Vec::new(),
             world_width: 0.0,
             depth_override: None,
             display_visible: true,